Sweetwater Regional Park Weather Forecast

    • 49
    • 69

    Mostly Sunny

    • 50
    • 70

    Mostly Sunny

    • 53
    • 72

    Mostly Sunny

    • 56
    • 77

    Mostly Sunny

    • 56
    • 81

    Mostly Sunny

    • 56
    • 77

    Mostly Sunny

Today 5 Dec San Diego County Coastal Areas

Mostly sunny. Highs 65 to 70. Light Winds.

Tonight 5 Dec San Diego County Coastal Areas

Mostly clear. Lows 46 to 50. Light Winds.

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Sweetwater Regional Park Temperature Statistics

December Temperature

San Diego, Brown Field Municipal Airport (6.8 miles)

  • Lowest 2 December, 2025

    44.1 °F

  • Average December

    56.2 °F

  • Highest 1 December, 2025

    66 °F

Climate (2020–Present)

San Diego, Brown Field Municipal Airport (6.8 miles)

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  • Average Low 2020–2025

    54 °F

  • Average 2020–2025

    63.4 °F

  • Average High 2020–2025

    73.8 °F
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